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WO2008039849A3 - Self-balancing frequency determining bridge - Google Patents

Self-balancing frequency determining bridge Download PDF

Info

Publication number
WO2008039849A3
WO2008039849A3 PCT/US2007/079553 US2007079553W WO2008039849A3 WO 2008039849 A3 WO2008039849 A3 WO 2008039849A3 US 2007079553 W US2007079553 W US 2007079553W WO 2008039849 A3 WO2008039849 A3 WO 2008039849A3
Authority
WO
WIPO (PCT)
Prior art keywords
frequency
self
frequency determining
balancing frequency
determining bridge
Prior art date
Application number
PCT/US2007/079553
Other languages
French (fr)
Other versions
WO2008039849A2 (en
Inventor
Richard R Hawkins
Jon R Sigler
Original Assignee
Ladybug Technologies Llc
Richard R Hawkins
Jon R Sigler
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ladybug Technologies Llc, Richard R Hawkins, Jon R Sigler filed Critical Ladybug Technologies Llc
Priority to US12/443,119 priority Critical patent/US7884596B2/en
Publication of WO2008039849A2 publication Critical patent/WO2008039849A2/en
Publication of WO2008039849A3 publication Critical patent/WO2008039849A3/en
Priority to US13/016,716 priority patent/US8330447B2/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/01—Arrangements for measuring electric power or power factor in circuits having distributed constants

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Amplifiers (AREA)
  • Testing Of Balance (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

A self-balancing Wheatstone bridge that provides frequency and power information. The frequency information obtained can be applied to correct the power measurement to provide excellent match, excellent frequency insensitivity, good dynamic range, good frequency range, and adequate frequency accuracy. The system is highly responsive, simple, and cost effective.
PCT/US2007/079553 2006-09-26 2007-09-26 Self-balancing frequency determining bridge WO2008039849A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/443,119 US7884596B2 (en) 2006-09-26 2007-09-26 Self-balancing frequency determining bridge
US13/016,716 US8330447B2 (en) 2006-09-26 2011-01-28 Self-balancing frequency determining bridge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82696906P 2006-09-26 2006-09-26
US60/826,969 2006-09-26

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/443,119 A-371-Of-International US7884596B2 (en) 2006-09-26 2007-09-26 Self-balancing frequency determining bridge
US13/016,716 Continuation US8330447B2 (en) 2006-09-26 2011-01-28 Self-balancing frequency determining bridge

Publications (2)

Publication Number Publication Date
WO2008039849A2 WO2008039849A2 (en) 2008-04-03
WO2008039849A3 true WO2008039849A3 (en) 2008-07-31

Family

ID=39230943

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/079553 WO2008039849A2 (en) 2006-09-26 2007-09-26 Self-balancing frequency determining bridge

Country Status (2)

Country Link
US (2) US7884596B2 (en)
WO (1) WO2008039849A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7884596B2 (en) * 2006-09-26 2011-02-08 Ladybug Technologies, Llc Self-balancing frequency determining bridge
KR101714040B1 (en) * 2010-07-06 2017-03-08 엘지이노텍 주식회사 System for monitoring impedence of antenna
KR101693858B1 (en) * 2010-07-06 2017-01-17 엘지이노텍 주식회사 System for matching impedence of antenna
EP3458946B1 (en) 2017-02-06 2020-10-21 FlatFrog Laboratories AB Optical coupling in touch-sensing systems
RU2661457C1 (en) * 2017-08-27 2018-07-16 Федеральное государственное бюджетное образовательное учреждение высшего образования " Юго-Западный государственный университет" (ЮЗГУ) Bridge measuring device for measuring parameters of two-terminal circuits
EP3676694A4 (en) 2017-09-01 2021-06-09 FlatFrog Laboratories AB Improved optical component
CN112889016A (en) 2018-10-20 2021-06-01 平蛙实验室股份公司 Frame for touch sensitive device and tool therefor
US10734140B1 (en) * 2019-02-26 2020-08-04 Texas Instruments Incorporated Resistor replicator
ES2991658T3 (en) 2019-11-25 2024-12-04 Flatfrog Lab Ab A touch device
US12282653B2 (en) 2020-02-08 2025-04-22 Flatfrog Laboratories Ab Touch apparatus with low latency interactions
KR20220131982A (en) 2020-02-10 2022-09-29 플라트프로그 라보라토리즈 에이비 Enhanced touch-sensing device
CN111855078A (en) * 2020-07-28 2020-10-30 中国电子科技集团公司第四十八研究所 A bridge load sensor zero point automatic adjustment circuit and adjustment method
EP4211786A4 (en) * 2020-09-08 2025-01-01 Outdoor Wireless Networks LLC APPARATUS AND METHODS FOR PREVENTING HUMAN INJURY DUE TO HIGH VOLTAGE ELECTRIC LINES
CN114689925B (en) * 2022-05-31 2022-09-20 陕西半导体先导技术中心有限公司 Isolated transient short-circuit current testing system and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944792A (en) * 1974-09-11 1976-03-16 Jovill Manufacturing Company Self-balancing bridge-type proximity detector
US4967159A (en) * 1989-02-23 1990-10-30 Abbott Laboratories Self-balancing reflectometer
US6486679B1 (en) * 2002-01-21 2002-11-26 Kenneth David Holt Wide-band ratiometric radio frequency bridge
US6853176B2 (en) * 2003-03-18 2005-02-08 Agilent Technologies, Inc. Power measurement apparatus and method therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852662A (en) * 1971-03-19 1974-12-03 B Katz Proximity measuring employing a self-balancing bridge and measuring the adjustable balancing component thereof
US5801525A (en) 1996-06-12 1998-09-01 Wiltron Company Frequency discriminating power sensor
US6496680B2 (en) * 2000-02-16 2002-12-17 Matsushita Electric Industrial Co., Ltd. Image fixing device and method using ultrasonic vibration
US7884596B2 (en) * 2006-09-26 2011-02-08 Ladybug Technologies, Llc Self-balancing frequency determining bridge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944792A (en) * 1974-09-11 1976-03-16 Jovill Manufacturing Company Self-balancing bridge-type proximity detector
US4967159A (en) * 1989-02-23 1990-10-30 Abbott Laboratories Self-balancing reflectometer
US6486679B1 (en) * 2002-01-21 2002-11-26 Kenneth David Holt Wide-band ratiometric radio frequency bridge
US6853176B2 (en) * 2003-03-18 2005-02-08 Agilent Technologies, Inc. Power measurement apparatus and method therefor

Also Published As

Publication number Publication date
WO2008039849A2 (en) 2008-04-03
US20110128034A1 (en) 2011-06-02
US8330447B2 (en) 2012-12-11
US20100007331A1 (en) 2010-01-14
US7884596B2 (en) 2011-02-08

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